Hollywood Dirt: Did Scott Disick Cheat? Are Diddy and Diaz a Couple?

COULD BE TRUE COULD BE CRAP KARDASHIAN KAOS - DID SCOTT DISICK CHEAT ON KOURTNEY???!!!: Perhaps you've noticed that ROB KARDASHIAN's family has been in the audience of 'Dancing With the Stars" every week cheering him on, and have been from the beginning. Well, at but one.

SCOTT DISICK -- KOURTNEY KARDASHIAN'S boyfriend and baby-daddy -- didn't show up until the Halloween night episode. And according to the not-always-reliable "Life & Style" it's because of KRISTIN CAVALLARI, who was also a contestant this season. 'Life & Style' claims that back in early 2009, while he and Kourtney were "on a break", Scott hooked up with Kristin, which caused MASSIVE friction between Kourtney and Scott. Kristin, you see, dated Kourtney's stepbrother BRODY JENNER during her "Laguna Beach" days. And Kourtney, Scott and Kristin remained friends even after that relationship ended.

But that friendship came to an end when Kourtney supposedly found out Kristin was allegedly sharing her down there parts with Scott. Consequently, Kourtney banned Scott from the tapings until Kristin was gone.

However ... a source close to Kristin says she did NOT hook up with Scott, and that Kristin finds the idea "GROSS". Kristin herself is vehemently denying anything ever happened. She tells "Access Hollywood" the story is bogus, and that the Kardashians are just trying to take the attention off Kim's divorce while simultaneously promoting the new season of "Kourtney and Kim Take New York."

Seems some folks think RYAN GOSLING got robbed. There's a petition online asking the magazine to admit its mistake, and the website Buzzfeed offers 63 reasons why Cooper is not the right choice -- each of those reasons being a photo of Ryan. There is one person who agrees with the decision, though: Bradley Cooper. He says when he learned of the honor, the "first thing I thought was, 'My mother is going to be so happy.'" I wonder what Ryan's mother thinks about this.

COVER SHOT:MILA KUNIS has been named "Knockout of the Year" in GQ magazine's annual Men of the Year issue. No controversy there!

ROMANCE REPORT - DIAZ AND DIDDY???: CAMERON DIAZ is said to be having a little fun now that she's split from ALEX RODRIGUEZ with none other than SEAN 'DIDDY' COMBS!!! Sources tell "Us Weekly" she had a brief fling with Diddy back in 2008, and, quote, "Since then, when she's single she'll booty call him."

Last month Diaz and Diddy were spotted at Catch in New York City, and witnesses say "they had their hands all over each other." Then last week, the pair was seen at Scarpetta in Beverly Hills and they were "making out, acting romantic." Reps for Diddy and Diaz claim they are "just friends," and were dining together to discuss a possible film project.

ROMANCE REPORT UPDATE - NO COMMENT FROM JLO: If JENNIFER LOPEZ really is dating that backup dancer, she's not ready to talk about it. When asked about it on a recent radio interview, Jennifer said, quote, "Until I'm in a really serious relationship -- because of the babies -- I'm not really gonna be commenting on my personal life."

SNAPSHOT: DONALD TRUMP arriving at 'Good Morning America' today looking like he spent a little too much time on the tanning bed ...

'DANCING' CASTOFF HOPE SOLO - 'EFF' THE JUDGES: In yesterday's report we shared with you how HOPE SOLO did not take her 'Dancing with the Stars' ouster well. "Us Weekly" reported that after Tuesday’s elimination she burst into tears and left after one interview. And in a clip recapping Monday's performance, Solo was heard saying the judges could "kiss my (bleeping) booty."

Well, now, "Extra" has exclusive footage of Hope right after she got the boot on Tuesday. In it, she looks at the judges, turnes to her partner Maksim and says, quote, "[Eff] them."

BONUS KARDASHIAN KNEWS - KIM CUTS OFF BFF: KIM KARDASHIAN has dropped more than just a husband, she's ditched a best friend, too.

According to reports on the World Wide Web of Kardashian News, Kim has cut off contact with Brittny Gastineau, who actually caught the bouquet at Kim's wedding to KRIS HUMPHRIES.

Word is Brittny wasn't convinced about Kim's romance with Kris, and not long after the wedding Kim stopped returning her former BFF's phone calls and emails. "Brittny was very concerned about Kim's decision to jump into this marriage, and she expressed that to her, in a very loving way,” a source told RadarOnline. "Maybe Kim felt like a fool, and perhaps she should have listened to Brittny. Brittny …is very hurt that Kim has frozen her out of her life right now."

BIEBER BABY SUIT DISMISSED: It's looking more and more like JUSTIN BIEBER will soon be doing the You-Are-Not-The-Father Dance. That woman who accused Bieber of being the father of her baby has dropped her lawsuit. Now she's accusing Selena Gomez of being the baby's mama. J/K. Hi-Yo!

TMZ reports the paternity lawsuit brought by Mariah Yeater was dismissed last week, and Yeater's lawyers, Lance Rogers and Matt Pare, have quit the case. If you recall, Justin was willing to take a paternity test to prove he wasn't the father and threatened to sue over the bogus claim. But Radar Online reports that even though the suit was dropped, the Biebs may not be off the hook yet. They claim Yeater is still involved in private negotiations with Bieber's legal team. Yeater's new lawyer says they are "trying to negotiate a private, secure DNA test" for Justin to take with the goal being “to keep everything confidential so the results will remain confidential."

BUT WAIT! NOT SO FAST, SPARKY!!! ... TMZ got a hold of some texts the alleged baby mama sent a friend Wednesday begging him to erase an incriminating text in which her mom says someone OTHER than Bieber is the baby daddy, and then promising to give him a cut of the action when she scores. Stay tuned! …

KATHY GRIFFIN THEN AND NOW: Plastic surgery has been very good to her, no?

QUOTE/UNQUOTE: "People always say that pregnant women have a glow, and I say it's because you're sweating to death." -- JESSICA SIMPSON, to 'People' magazine.

UPDATE - JENNIFER ANISTON IN DENIAL: JENNIFER ANISTON'S rep is denying a report that the actress had an emotional meeting with her boyfriend Justin Theroux's ex-girlfriend.

The Italian magazine "Grazia" reported yesterday that Aniston wanted to let Heidi Bivens know that she's not a home wrecker.

Aniston supposedly "explained that she wanted [Bivens] to know, hand on heart, that she would never steal another woman's man." However, a rep for Aniston called the meeting a "complete fabrication" and says it "never happened."